Crystals. After being at Berlin he returned in 1851 to Queenwood, and in 1853 was appointed Prof. of Natural Philosophy in the Royal Institution, which in 1867 he succeeded Faraday as Superintendent. With Huxley (q.v.) he made investigations into the Alpine glaciers. Thereafter he did much original work on heat, sound, and light. In addition to his discoveries T. was one of the greatest popularisers of science. His style, remarkable for lucidity and elegance, enabled him to expound such subjects with the minimum of technical terminology. Among his works are The Glaciers of the Alps (1860), Mountaineering (1861), Fragments of Science, two vols. (1871), including his address to the British Association at Belfast, which raised a storm of controversy and protest in various quarters, Hours of Exercise on the Alps, etc. T. d. from an overdose of chloral accidentally administered by his wife.
Tytler, Alexander Fraser (1747-1813).—Historian, s. of William T. (q.v.), studied at Edin., was called to the Bar in 1770 and raised to the Bench as Lord Woodhouselee in 1802. He was Prof. of History in Edin., and wrote Elements of General History (1801), An Essay on the Principles of Translation (1791), besides various legal treatises.
Tytler, Patrick Fraser (1791-1849).—Historian, s. of the above, studied at Edin., and was called to the Bar in 1813. Among his many writings are an Essay on the History of the Moors in Spain, The Life of the Admirable Crichton (1819), History of Scotland (1828-43), and England under the Reigns of Edward VI. and Mary (1839). His History of Scotland, which was the result of 20 years of study and research, is still authoritative.
Tytler, William (1711-1792).—Historical writer, was a lawyer in Edin., and wrote An Inquiry into the Evidence against Mary Queen of Scots, in which he combated the views of Robertson. He discovered the King's Quhair of James I., and pub. in 1783 The Poetical Remains of James I., King of Scotland, with a Life.
Udall, Nicolas (1505-1556).—Dramatist and scholar, b. in Hampshire, and ed. at Oxf. In 1534 he became headmaster of Eton, from which he was dismissed for misconduct, 1541. In 1537 he became Vicar of Braintree, in 1551 of Calborne, Isle of Wight, and in 1554 headmaster of Westminster School. He translated part of the Apophthegms of Erasmus, and assisted in making the English version of his Paraphrase of the New Testament. Other translations were Peter Martyr's Discourse on the Eucharist and Thomas Gemini's Anatomia, but he is best remembered by Ralph Roister Doister (1553?), the first English comedy, a rude but lively piece.
Underdown, Thomas (fl. 1566-1587).—Translator. He translated the Æthiopian History of Heliodorus 1566; also from Ovid.
Underwood, Francis Henry (1825-1894).—Critic and biographer, b. in Massachusetts, was American Consul at Glasgow and Leith. He wrote Hand-books of English Literature, Builders of American Literature, etc., some novels, Lord of Himself, Man Proposes, and Dr. Gray's Quest, and biographies of Lowell, Longfellow, and Whittier
